Automatic recorder for machine output



April 14, 192.5. l 1,533,586

G. DESENNE AUTOMATIC RECORDER FOR MACHINE OUTPUT Filed Jani. 12, 1922 3 sneets'ne'bt '1 rnnar:

, 6'; esenne April 1,4. 1925.

G. DESENNE AUTOMATIC RECORDER FOR MACHINE OUTPUT Filed Jan. 12, 1922 3 Sheets-Shabat 2 G. DESENNE AUTOMATIC RECORDER FOR MACHINE OUTPUT April 14, 1925.

5 Sheets-Siggi 3 Filed Jan. 12, 1922 FigzAl,

[www for ,Ue/.Senne a W a' Patented pr. 14, `192.5.

f UNITYED I.sfra'rliisPATENT*OFFICE.

' GEORGES DESENNE, 0E COURBEVOIE, FRANCE.

AUTOMATIC RECORDER FOR MACHINE OUTPUT.

Application led January 12, 1922. Serial` No. 528,742.

"[0 all 'whom '5t 'may concer/1t.'

Be it known that I', GEORGES DEsENNE,

a citizen of the French Republic, residingv at Courbevoie, Seine., France, 118 Boulevard de Verdun, have invented a new and useful Improvement in Automatic. Recorders for Machine Output; and I do hereby declare the following to be a full, clear, and exactdescription of the same.

This invention relates to furnishing an*l automatic apparatus to control and record with great accuracy the Work of any mechanism. Said apparatus may have lvarious applications, such, for instance, as-the following ones: y

1st. The apparatus, when mounted upon a motor car, indicates the number of kilometers (or miles) travelled over in a. given time, the periods of stopping, thevlengths of the forward and backward runs,'and any other data necessary for computing the consumption of fuel, the wear and tear on the tires, and, generally, all that is useful for learning the use .made of the inotorcar by the driver, for controlling the running and efficiency of the vehicle, and for ascertaining the cost of travel per kilometer (or mile); Thus applied, the apparatus constitutes an horo-kilometric controlling and recording device.

2nd. Control of the Work' of' a machine tool.

3rd. Realization of a controlling station for the night Watchman in factories and Working yards. i. The kapparatus comprises two distinct actuating mechanisms, which areindependent from each other', but the actions of which 1 are combined, as will be hereinafter explained, tlie formerr mechanism consisting of a shaft transmitting to the apparatus the motion of the car 'or of the machine to be controlled and the latter mechanism involving a clock Work producinguniforn'i movement of av disc upon which the reco-rding takes place.

In the accompanying drawings, a practical embodiment of the invention is illustrated, by Way of example.

Figs. 1 and 2 are, respectively, a section on line l--l of Fig. 2 and a section on line 22 of Fig. 1, of an apparatus designed according to the invention.

Fig. 3 is a` section similar to Fig. 1, but comprising a disengaging device intended to automatically l.remove the pencil from the `disc after a predetermined number of hours.V

Fig. 4 is a section on line 4--4 of F 1g. 3; f I,

Fig. 5 is a separate view of t-lie disengag- I parted bya cam rotating around the of rotation of the aforesaid disc, said'cam being integral With a pinion actuated by a Worm connected by a flexible shaft, or any i othersuitable means, With the machine to be controlled. `Thus is 'realized an apparatus vhaving a lesser bulk and a numbe of .partsy than in former devices.

A case 36 contains a box 37, in which is located a clock Wort (not shown) which imparts to a: `disc 38 a uniform rotary motion.v Upon the inner face of the disc is applied a circular paper sheet 39, to receive the diagram drawn by a. pencil 24, and is maintained rin position in any suitable manner enabling the sheet to be readily changed, and for instance, as shown in Fig. 1, by means of a. flange 40, pressed against a shoulder 41 of a shaft 42, by ay nut The box 37 isof cylindrical shape and its external surface, carefully' machined true, forms a trunnion for a cani and pinion device 44, 45, which is mounted with an easy sliding fitl upon said box, and is maintained between a. shoulder 46 and a ring 47 provided on the box. lThis mode of mounting permits rotation of the device, lWhile preventing its displacement in a longitudinal direction.

yThis lever acts upon a pencil holding cross beam 50i," carrying the pencil 24, and sliding upon guiding posts 51. The cross beam 50 and the pencil 24 is constantly urged down- Wards, either by gravity alone, or by the ico combined action of `gravity and of springs As a result lever 48 is constant-ly maintained against the periphery of the cam Hfst.

The operation of this apparatus Will'be readily understood from the `following explanation. e

The Worm 8, rotates the pinion 45, and, consequently, the cam e4, at -a speed, which is proportional to that of the organ or machine tobe. controlled. lVhenever the cam completes a revolution, it causes thepencil holding cross beam 50 to effect a reciprocating stroke, through the medium of the lever a8, said numbers assuming, successively, the positions shown by full. lines and by pick and dot lines. Also, at the saine time, the: clock Work imparts to the' disc 39 a rotary motion of uniform-speed, whereby the pencil traces a line on the dise, the appearance of which is similar to that of the tee-th of a circular saw as shown in Fig. 6, the top angle of the teeth being more acute according as the cam rotates faster. lVhen the cam remains stationary, the pencil. drans an are of a circle having its center situated l on the axis of rotation ofthe disc, the length of which arc is proportional to the duration of the rest period of the cam.

lVith the apparatus above described, can be combined a device to put the disc into position in the morning for example, and to change it only the next morning, that is, twenty-four hours later, although the disc can be dividedv into twelve hour portions, of course, like the cial of a. clock.. Indeed, without the intervention of the device which will now be described if the disc were not immediately changed after theI end of a given period, the pencil would continue to dran' lines over the diagram already drawn.

In order to avoid this defect, a lever 53, provided with a slot in one of its ends, embraces, by such end, and by any suitable means :is attached to, the shank of the pencil 2li and bears upon a collar 55 on the pencil. T his lever pivots on an axis 56 mounted into a stirr'up integral with a washer 57, forming a partition, the Washer being fastened upon the edge of the stop ring 47, and being of a vwhich. lies in the path of a. buttom 63 sccured to the flange 40 which holds the disc '39.

,Y Then the button (53 strikes the head G2, -it presses it laterally, bending the flexible blade 61 until the bar (SO is pushed beyond the edge of the lever to thus free the lever. The lever, owing to the pressure of the spring 58', pivots around its axis, thus bringing the pene-il away from the disc and forcing it into the pencil holding cross beam 50, wherein it r anains housed until the lever 53 has been recocked.

It obvious that the arrangemei'lt of the parts 62 and 625 is such that the part meets the part 62 only at the end of a desired period. y

It is to be noted that the washer 5T, forming a partition, completely covers the mechanism, into which, therefore, the dust cannot penetrate during changing of the disc 39, and the mechanism is furthermore protected against all fraudulent intervention,

Claim:

A recorder of theA character described, comlnfising a rotatable record sheet, means for rotating` the record sheet, a marking de-y vice, and means for actuating the marking device, in combination with an automatically acting spring pressed pivoted lever for moving the marking device away from thx,` record sheet, after a predetermined period of operation of the recorder.

In testimony whereof, I have signed my .name to this specification.

GEORGES DECENNE. 

